gator's 99TA

iTrader: (2)

well if you do that, you might as well put the BB on alcohol and turn the timing/compression up!

NA$TY-TA

iTrader: (21)

To Small Right Phil......

632ci and no single.............. Twin 88's............

Kyle

Phil99vette

iTrader: (11)

Twin 88s. **** Twin Pro-mod 91s.

Shawn @ VA Speed

iTrader: (3)

you said earlier today a 768 with twin 106's on methanol

Phil99vette

iTrader: (11)

That I did.








That was for your car.

1QuickT-A

iTrader: (12)

Hell no.. A big block would have been a better choice more than likely.. You can build them for the same price.. **** Shafiroff sells a nitrous ready 632" COMPLETE and when I say complete I mean ready to fire up with a few wires and a hot battery and some oil for $25,000.. You can't build an LSX with All Pro or ETP heads and all the bullshit you need for that price hardly. The big block is gonna last a hell of a lot longer and take twice the abuse.

1QuickT-A

iTrader: (12)

We will be calling around to some LSX shops this week to try and get as much info as we can about these problems. We just got our LSX block last week and now we read all of this bullshit. Like I told someone a little bit ago PROPS to PHIL for letting the cat out of the bag on what could possibly be a HUGE problem for A LOT OF guys that are in the middle of an LSX build right now. There is no way in hell that I have the money to spend 2g's on a block and then even more money on all this lightweight custom **** and girdles to fix the 2,000 dollar GM piece of ****. So, we are gonna do some research and see what we can dig up before we even TOUCH this block.

Its sad when a stock 6.0 block is "POSSIBLY" stronger than the GM big dog lsx block...

Robin L

This is old news here. Just a re hash of previous stories that were going around months ago. We have seen these problems with other builds and have posted what we found to be the best soloutin to the problems.

I as well as others have shared what we found during the past year. The information is there if you really want it. It appears to me that you don't.



Robin

Robin L

LOL, I just read the part about a main girdle. Main girdles are useless on the LSX block. If you buy into that line then I you need to find another engine builder.

In the world of high horsepower it's not smart to use lightweight components. The deflection will destroy the entire assembly. It's a catch 22. The heaver it is the more forces it places on the engine. But on the other side the light parts flex like a wet noodle at high horsepower.

You not going to get a small block to live at the RPM that you are talking about. As we all know we can make it live at 7000 RPM. We run our Nitrous engine to 9000 RPM but not with that level of power.

Let me know how it works out.


Robin

Phil99vette

iTrader: (11)

Wow, where did the attitude come from? Seems like your pissed off about something. If you have something on your chest lets hear it. It appears as if you have a problem with me while my problem is with the LSx block/advertising.

You posted the solution was:
11MM Main Studs
Billet Center counter weighted crankshaft.
Strokes no larger than 4"
Min 2" rod journals
A little extra clearance in the main bearings.

I agree with everything you said but we don't feel it will completely eliminate the problems. Other things need to be done to make the combination live. The dowels leave alittle to be desired.

Food for thought...
You said that Main girdles don't work. Kurt Urban did testing to prove otherwise. Their testing showed the Main girdle was the only thing that could be done to stabilize the bottom of the LS1 motor. His was having exactly the same problems as ours.

You said that you can not get a small block to work @ that kind of RPM. Andy Jensen Did testing and has proven otherwise.

If In the world of high horsepower it's not smart to use lightweight components. The deflection will destroy the entire assembly. Why do TOP FUEL guys use lightweight aluminum rods and forged pistons?

If the crank was the problem than why did the block show signs that the internals were not happy?

Everyone that has looked at the LSx block has all said that the webbing is not strong enough for a motor that is quoted @ 2500hp. We have had an engineer look at the block and he agrees.

Why did GM choose a 10mm or .400 fastener for the mains if they knew the block was going to be advertised to handle 2500hp?

Again I am NOT trying to rain on anyones parade but the LSx block from the factorywas never designed to handle 2500hp.

Oh and BTW I do not come from the school that accepts the saying "thats just how it is with a small block."

Phil99vette

iTrader: (11)

Unfortunately, you are right. There are parts of the 6.0 iron block that has a better design and therefore stronger.

Fireball

iTrader: (21)

MADMAN

iTrader: (4)

I will keep the BBC.

Phil99vette

iTrader: (11)

Hold on, how are you going to keep the BBC? At the end of the season...Well nevermind. My buddy has a Brodix BBC sitting over at this shop.

MADMAN

iTrader: (4)

If your broke *** car was mine the Brodix BBC would be already in it.

LSX Wizard

Name one.

Phil99vette

iTrader: (11)

Who you telling. 4.500 bore x 4.500 stroke

Phil99vette

iTrader: (11)

Have you examined both in close detail?

LSX Wizard

Yep. As I asked, name one.

Z06PSI

iTrader: (33)

We decided to dowel the caps and use a girdle. Not near as extreme but it made a lot of sense on a motor pushing 1000rwhp.